Updated: Apr 29, 2026
Location and Projects
Address
3727 LARCH CT, Concord, CA, 94519
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Delta T Mechanical
Delta T Mechanical, 3727 Larch Ct, Concord, CA (Owned by: Russell Daniel Cole) holds a Warm Air Heating, Ventilating And Air Conditioning license and 2 other licenses according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Delta T Mechanical, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Delta T Mechanical Contact Information
Phone Number: (916) 955-0248
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Address: 3727 LARCH CT, Concord, CA 94519
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Delta T Mechanical Concord
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Delta T Mechanical has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
Our building permit records indicate that Delta T Mechanical has worked on at least
6.0 projects over the past 2 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
6 projects
|
< $5k |
The typical size of their permits is approximately $2,100. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Building - plumbing water heater replace like for like
2025-07-29
50 gallon natural gas water heater replacement like for like in garage
Valuation:
$2,100
Permit #:
BLDG-PSI-2024-00026
Status:
expired
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Building - plumbing water heater replace like for like
2025-07-15
40 gallon natural gas water heater replacement like for like in closet
Valuation:
$2,100
Permit #:
BLDG-PSI-2024-00018
Status:
expired
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Building - plumbing water heater replace like for like
2024-07-12
50 gallon natural gas water heater replacement like for like in garage
Valuation:
$2,300
Permit #:
BLDG-PSI-2024-00016
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Building - plumbing water heater replace like for like
2025-01-09
50 gallon natural gas water heater replacement like for like in garage
Valuation:
$2,000
Permit #:
BLDG-PSI-2024-00015
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
40 gallon natural gas water heater replacement like for like in garage
Valuation:
$2,000
Permit #:
BLDG-PSI-2024-00012
Status:
expired
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Building - plumbing water heater replace like for like
2024-08-02
50 gallon natural gas water heater replacement like for like in garage
Valuation:
$2,200
Permit #:
BLDG-PSI-2024-00009
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Supplemental permit to 22044-90000-05685 to ad more hvac work
Valuation:
N/A
Permit #:
22044-10002-05685
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Mechanical ductwork/exhaust
Valuation:
N/A
Permit #:
22044-90000-05685
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to 22044-90000-05685 to install new mechanical ductwork. install new exhaust fan. install new 1 1/2 ton split air condition for server room
Valuation:
N/A
Permit #:
22044-10001-05685
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Mechan
3166 Woodleigh Ln, CA
2015-02-03
No Description Available
Valuation:
$13,000
Permit #:
233696
Status:
FINALED
Fee:
N/A
Permit Type:
New
Building Type:
1-fmly
Hvac work
Valuation:
N/A
Permit #:
22044-10000-12897
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Re-route exit point for the exhaust for the pollution control unit this has to come in as a new permit
Valuation:
N/A
Permit #:
COM-1808189
Status:
expired
Fee:
$152
Permit Type:
N/A
Building Type:
N/A
Hvac installation multi zone split system heat-pump
Valuation:
N/A
Permit #:
PM20170117221
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Delta T Mechanical Reviews
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Verified License
BuildZoom confirmed this contractor's license
Delta T Mechanical License info
Verified License
| License # | 1149376 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Date Issued | 01-23-2026 |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Delta T Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1113769 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Delta T Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 983252 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Delta T Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | Accredited Surety & Casualty Company Inc |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
9
Permits
- Building permit records show that Delta T Mechanical has worked on 9 permitted projects.
Delta T Mechanical Employees
DC
Daniel Stuart Cutt
Sole Owner
DB
Dylan Spencer Bartholomew
Officer
EG
Evan Joseph Guenza
Officer
JL
James Masai Lindsey
Officer
RC
Russell Daniel Cole
Owner